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Dulles International Airport to Seattle flight
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Cheap Flights from Dulles International Airport to Seattle

Search for flights from Dulles International Airport to Seattle. Find affordable one-way or round-trip flights.

  • One way
  • Round-trip
sortSort by: Lowest Price
  • Sort by: Lowest Price
  • Sort by: Earliest Flight
      • IAD19:09
        5h 51m
        Direct
        SEA22:00
        Washington D.C. - Seattle|Wed, May 15|Alaska Airlines
        US$123US$177
        30% OFF
        30% OFF
        US$177US$123
      • IAD19:09
        5h 51m
        Direct
        SEA22:00
        Washington D.C. - Seattle|Mon, May 6|Alaska Airlines
        US$127US$177
        28% OFF
        28% OFF
        US$177US$127
      • IAD07:10
        10h 17m
        1 stop
        SEA14:27
        Washington D.C. - Seattle|Tue, Apr 30|Alaska Airlines
        US$128US$177
        27% OFF
        27% OFF
        US$177US$128
      • IAD17:45
        5h 53m
        Direct
        SEA20:38
        Washington D.C. - Seattle|Tue, Apr 30|Delta Air Lines
        US$130
        US$130
      • IAD07:40
        5h 40m
        Direct
        SEA10:20
        Washington D.C. - Seattle|Sat, Apr 27|Alaska Airlines
        US$130
        US$130
      • IAD07:40
        5h 40m
        Direct
        SEA10:20
        Washington D.C. - Seattle|Tue, May 7|Alaska Airlines
        US$131
        US$131
      • IAD07:30
        5h 50m
        Direct
        SEA10:20
        Washington D.C. - Seattle|Sat, May 4|Delta Air Lines
        US$131
        US$131
      • IAD18:05
        22h 20m
        1 stop
        SEA13:25
        Washington D.C. - Seattle|Sat, May 18|Alaska Airlines
        US$134
        US$134
      • IAD17:45
        5h 53m
        Direct
        SEA20:38
        Washington D.C. - Seattle|Sat, Apr 27|Delta Air Lines
        US$136
        US$136
      • IAD19:09
        5h 51m
        Direct
        SEA22:00
        Washington D.C. - Seattle|Wed, May 8|Alaska Airlines
        US$136
        US$136
      • IAD13:00
        3h 5m
        Direct
        SEA14:00
        Washington D.C. - Seattle|Fri, May 3|Alaska Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Selected Airlines from Dulles International Airport to Seattle

View airlines operating flights from Dulles International Airport to Seattle. Compare prices and find the airline that meets your travel needs to enjoy a comfortable journey.

Alaska Airlines
From US$123
Delta Air Lines
From US$130
Sun Country Airlines
From US$140
American Airlines
From US$151
United Airlines
From US$152
Southwest Airlines
From US$153
Southern Airways Express
From US$177
ANA airlines
Find more flights and airlines

There are 1 airport(s) in Seattle. Discover the top routes now!

Discover different airports in Seattle. Find the best flight and transfer option, and plan your trip accordingly.

  • 0.7 km from downtown Seattle
    Seattle-Tacoma International Airport
    Tickets From
    US$123
Flight Schedule from Dulles International Airport to Seattle

Check on the flight schedule from Dulles International Airport to Seattle. Find the flight that matches your travel plan.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS499

    Alaska Airlines

    07:02

    IAD

    5.7h

    Direct

    09:44

    SEA

    SMTWTFS
    Search

  2. AS277

    Alaska Airlines

    07:10

    IAD

    5.4h

    09:33

    LAX

    SM-WTFS
    Search

  3. AS1219

    Alaska Airlines

    11:10

    LAX

    2.8h

    14:00

    SEA

    SMTWTFS

  4. DL748

    Delta Air Lines

    07:30

    IAD

    5.8h

    Direct

    10:20

    SEA

    SMTWTF-
    Search

  5. SY224

    Sun Country Airlines

    11:20

    IAD

    2.9h

    13:11

    MSP

    S--W--S
    Search

  6. SY285

    Sun Country Airlines

    14:14

    MSP

    3.9h

    16:06

    SEA

    S-TWT--

  7. AS507

    Alaska Airlines

    16:16

    IAD

    5.3h

    18:34

    SAN

    SMTWTFS
    Search

  8. AS1199

    Alaska Airlines

    20:50

    SAN

    2.9h

    23:44

    SEA

    S-TWTFS

  9. AS507

    Alaska Airlines

    16:16

    IAD

    5.3h

    18:34

    SAN

    SMTWTFS
    Search

  10. AS1071

    Alaska Airlines

    18:49

    SAN

    2.9h

    21:44

    SEA

    S--WTFS

  11. AA2414

    American Airlines

    17:14

    IAD

    3.7h

    19:55

    DFW

    SMTWTFS
    Search

  12. AA2927

    American Airlines

    21:22

    DFW

    4.5h

    23:49

    SEA

    SMTWTFS

  13. DL952

    Delta Air Lines

    17:45

    IAD

    5.9h

    Direct

    20:38

    SEA

    SMTWTFS
    Search

  14. AS396

    Alaska Airlines

    17:55

    IAD

    5.8h

    Direct

    20:46

    SEA

    -----F-
    Search

  15. AS406

    Alaska Airlines

    18:37

    IAD

    5.9h

    Direct

    21:30

    SEA

    SMTWTFS
    Search
Find more flights and airlines

Flight Info of Flights from Dulles International Airport to Seattle

Cheapest round-trip ticket price

$175

Cheapest nonstop flight price

$77

Off-season for travel

January

Peak season for travel

October

FAQs for Dulles International Airport to Seattle Flights

  • What is the transportation method from the main airport to downtown in Seattle?

    • The distance from Seattle-Tacoma International Airport to downtown is about 17km. It takes about 30 minutes by taxi.

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